Regarding the other person's comment above, they were referring to the slang term "unicorn hunters", which means a couple (usually a straight male and a bisexual female) seeking a single person (usually a young, unattached bisexual female) to be with both of them. The idea being that the sort of person they're seeking does not in fact exist (thus "unicorn"). It's a very common thing, which is why it has its own term, and it very rarely goes well. I could explain why, based on my own observations, if you'd like.